Ship construction



1943- J. H. ODENBACH 2,328,028

SHIP CONSTRUCTION Filed Feb. 7, 1941 4 Sheets-Sheet 1 INVENTOR F G 5 JOHN H. ODENBACH BYM/FW ATTORNE Aug. 31, 1943.

J. H. ODENBACH 2,328,028

SHIP CONSTRUCTION Filed Feb. 7, 1941 4 Sheets-Sheet 2 IIIII/I/I/I/I/ FIGS INVENTOR JOHN H. ODE NBACH BY Mi jTTOR Aug. 31, 1943.

J. H. ODENBACH SHIP CONSTRUCTION 1 Filed Feb.

4 Sheets-Sheet 3 INVENTOR JOHN H. ODENBACH TTORNE? J. H. ODENBACH Aug. 31, 1943.

SHIP CONSTRUCTION Filed Feb. 7, 1941 4 Sheets-Sheet 4 I. 1 I I I I I u H I I l A I I I l I I I.

FIG. l4

'l/IIIIIIIIIIIIIIIIIIIIII! INVENTOR 42 JOHN H ODENBACH BYM E Patented Aug. 31, 1943 I of ship, constr'uctionrand corner construction open or undecked boat-or n 2,328,028 SHIP CONSTRUCTION John lLhOdenbach,Rochester, NL Y.,..assignor to 'Odenbach Holding Corporation,

N. a corporation of New York 19 1, Serial No. 377,882

r Application February 7, (Cl. lid- 79) n V reclaims; Thisinvention relatesto an improved method .In ,myqprior patents, 1,970,182 of August 1 14;" 29, 1935,.andt2,l04,053

1934; 2,018,865 ofOctober. of January 4, 1938 andin my co -pending applicationlof March 25, 1939, Serial Patent 2,279,091-01 April 7, 1942, I have described novel apparatus and methods" of constructing the hull of a ship and this application is particularly directed to improvements in such methods and to ships constructed thereby; r

In my co-pending application oiwMarch. 25,

1939, Serial No. 264,090, I have shownfa' method Q ofionning thebow hull to obtain thenecessarywurvilinear and convergingsides of-thestructure. :In thatap and stem portions of aships plication a plurali'ty of members; each having tmform "the curved sides oftheibow and stem No. 264,090, ne

the product of such a Rochester,

line? production because the forming? the initial will be similar in design and. size.

. A further object of the invention is the elimination of muchccstly engineering, design, lay

v outand loftwork.

Afurther object of the invention is. the use of a, construction method adapted to -use welded tapered legs, are positioned in adjoining; relation sections, the individual members being fabrix cated with tapered legs, prior to incorporation in the hullstructure.

lnwbrief, the: methodof construction disa closed in this applicationtcomprises the joining;

together of a plurality ofmembers to form a tubular rectangulanstructure having substantially parallelwalls; putting; a piece from each oftwo oppositely disposedwalls at the bow and at thesterncf said tubular structure to leave projections from the amidshipspQrtiOn of the tubular:structureyycutting transverse pieces out projections, (if; the curved (as shownr is used) defleeting thesame projections inwardly to bring a of certain of; said the. edgesofthe cut-outs into contact and joining said contacting edges to complete the hull structure.--

As will be described hereinafter, modifications of this general concept may be used to advantagetand by changing theshape of the initial "tubular section and the shape of. the [cut-outs latitude of 1design may be obtained. An open top section would be: used to obtainan bargew A principal objector thisjinvention is to pro vide an economicaLhrapid tion for shiphulls. n A further principal objectfof this invention is to provide amethod whereby a. hull maybe constructed entirely shapes with I a minimumrof fabrication prior. to incorporation into thehull. n A further principal object of this invention is tnprovide a method particularly adapted for from standard structural required mum of shipyard equipment. a

method used to assure,

joints between the members" and to enable the .useg oi automatic welding equipment for most of the Work. H

j 1 A furtherobject ofwthe qinvention isto secure augreat variation of line or contour in the hull in a simple and economical manner.

"A further object of the invention is to provide ame'thodWhich can be practiced with a mini- A particular object. of the invention the bendingof the hull surfaces at the desired points during the deflecting operation. i M i 1 Aiurther object ofthe invention is'to provide rality of members may be alignedstraight in a jig and thereafter given thefltrue curvilinear surface desiredin the hull, with a minimum of labor, expenseand skill being required.

A further object of the invention-is to provide a method of ship construction whereby automatic welding. equipment may be usedfor the straight flat welds requiredin the construction of the initialhull structure, before cutting anddefiection to, form the bow and stem, or

end portions, of the hull. n

To these and other ends the characteristiefea tureswand advantages of my improvementswill more fully appear in the 1 I following description and-"the accompanying drawings iniIIustratiOn thereof.

""In the drawings in whichlilze reference numeral's designatelike parts,

and strong construc- Fig; 1 is a diagrammatic plan View ofan initial hull structure assembly.

taken on the plane AB of i ig."2 isfa section Fig 1.

n Fig. 3 is a diagrammatic plan view of the struc ture ofFig. 1 after the cutting and removal of sections from the top deck and bottomof the hull,

"g. '4 is a sectional View taken on the plane Fig. 5 is a diagrammatic plan view of the structure shown in Fig; 3 after the hull side walls have been deflected inwardly into position toiorm the,

bow or the ship.

several units, set-up or hull assembly,

atmethod of ship construction wherebya pluture shown in Fig. '7 after the hull sides have been brought into position to form a portion of the bow, the dotted lines showing the additional structure necessary to complete the bow of the hull.

Fig. 10 is a section taken on the plane J-l of Fi 9.

Fig. 11 is a side elevation of the complete structure shown in Fig. 9 and also shows the layout of the additional structural. members embodied in the extreme forward position'of the bow.

Fig. 12 is a plan view showing the arrangement of the structural members in the bow of a hull constructed inaccordance with theinvention.

Fig. 13 is a plan view of one of the walls of the structure shown in Figs. 3 or '7 and discloses the method of transverse cutting employed to secureproper bending when bringing the project: ing walls into final position.

Fig. 14 is a diagrammatic side view of an initial hull structure assembly similar to Fig. 1.

in the final hull structure, form the amidships portion and also members for use in forming the bow and stern, or end portions, of the hull.

Figs. 3 and 4 represent the structure 2!] of Fig. 1 after the top 2| and bottom of same have been cut and the sectoral pieces have been removed to leave the cut-outs oropenings 2S and 2'! in the top 2! and openings 28 and 29 (see Fig. 4) in the bottom 22 of the tubular structure 20. The removing or" the cut-outs 26 to 29 inclusive leaves the projecting walls ti] and 35 and also the projecting top deck portion 32 and the projecting bottom portion 33 attached to the Fig.15 is a section taken on the plane L-M of' Fig. 14.

' Fig. 16 is a diagrammatic side view of the structure of Fig. 14 after the cutting of sections from the side walls of the hull leavingcut-outs or openings as shown.

Fig. 17 is a sectoral view taken on the plane I NO of Fig. 16.

Fig. 18 is a diagrammatic side View of the structure of Fig. 16 after the hull bottom has been deflected upwardly to form the inclined run at the stern.

Fig. 19 is a section taken onthe plane R-Sof Fig. 18. 1 Fig. 20 is a diagrammatic end View of the hull shown in Fig. 18.

Fig. 21 is a diagrammatic plan view of the hull shown in Fig. 18 after the addition of thefantail which. as shown. may be constructed in accord ance with the method disclosed in my co-pending application, Serial No. 264,090. I

ig. 22 is a diagrammatic section through a hull structure having bottom and sides and without a top deck.

Referring to 1, reference numeral 2% designates the init al tubular structure which may be formed of channel members encircling the struc ture and constructed in accordance with the method disclosed in my U. S. Patent 2,018,865, of October 29, 1935.

As disclosed in, the patent, 2,018,865, the method comprises the initial pro-forming or bending of the structural members into ring-like shape, conforming to the transverse section of the hull, tacking a plurality of members together while they are held in alignment, to form unitary sections. welding the joints between the members in each of the units and combining a number of sections to form a hull structure.

The tubular structure 2t, shown in Fig. 1 com-- prisesthe top All, the side walls 39 and 31 and the bottom 22. and includes members which wi amidships portion 4a of the hull.

llhe cut-out 26 in the top 32 leaves the cut edges 34 and 36, and the cut-out 27 in the top 32 leaves the cut edges 35 and 3'5. Similarly, the cut-out 28 in the bottom 33 leaves the cut edges 42 and M and the cut-out 29 leaves the cut edges as and 45. Figs. .5 and 6 represents the hull structure 20 after the projections 3&3 and 3t have been'de ilected inwardly so that the out edges 3 and tli-til and 3l $2 and M, and 43 and 45 are brought into contact and welded to complete the bow section of the hull.

It will be understood that if the channel construction shownin my U. S. Patents 2,018,865 and 2,104,053 is used it is preferable to run a flat bar header, of the same or greaterdepth than the channel flanges, between the contacting edges and weld the cut edges to each side of this bar. Such a header is shown at 54 in Fig. 12.

Figs. '7 and. 8 represent in initial structure similar to that'shown in Fig. 1, after cut-outs I have been made in the top and bottom; In order to secure an overhang oi the deck at the bow, the cut-outs fit and 53 in the bottom of the initial structure are larger, as shown by-the broken lines in Fig. '7, thanjthe cut-outs dfi'and 5! in the top of the structure.

Figs. 9 and 10 represent the structure after the cut'edges have been deflected into contact as described above, and welded as shown to complete' the bow of the hull.

As shown in Figs. '7 and 9 the initial hull structure does not include the forward portion 55 of the bow, which is added to the hull later as shown in Figs. 11 and 12. This construction can be used to advantage where the extreme forward portion of the how 55 has straight sides.

It is pointed out that almost any desired shape of bow may be readily obtained by the use of cut-outs of proper contour and size inthe top and .bottomoi the initialstructure and proper shaping of the side walls. By bending the members forming the bow walls 35) and 3! to form concave sides in the forward portion of the initial structure and making the cut-outs larger in the bottom than in the top as shown in Figs. '7 and 8, a close approximation to a cutter bow may be obtained.

In deflecting the projections 353 and 3! into final position in the hull structure it is important that buckling be avoided so that the cut edges will be brought into close contact for welding-and the lines of the hull maintained.

To obtain this result with a minimum of shor ing. the method diagrammatically shown in Fig. '13 may be used. 'The initial hull structure 20 (as shown'in Fig. 1.) has rounded corners and the line of cutting, parallel to the walls 35 and 3!. passes through the point of curve of such rounded corner. Thus, if a radius of three feet is used for the round theline of cutting I68, as shown respondtoi out edges 3;;35,

bnought mto contact with theheader 54 (seeFign ml asjdescribed, and im nediatelytaok welded Qintoposition. n-

3 I, t f lt willsbe noted that the curved corners of the Xdecrondbottom are ofgreat importance in pro-;

a fantail' construction as at 1') us l n i h r 2,a2s,o2sq h 3" int-"Fm; 13; mm :be l parallcl m and three mt mmmQmcwisioime wait; 1 i, n

In ordcrithat the deflection of theyprojections mm/Jbeaocomplished with and ag'true line secured, it isnecessw toremove transverse sec-n tailpiece: I62 ircmthe top and bottom curved portionsof the .sidewallsms shown in Fig; 13..

Should all these sectoral pieces: be: rembrcd print to deflection of the lwall into' position, it,

d'zincnit' to m 'eventpbdckling." To.-vercomm-this, sectoral pieces are removed as ,sl'mmattiitleaving relativelysmall sections in nlace as rshownratjr-ifl. As the bending or dc-l "MOITIPNCGQQS these small sections I64 are, each individually cutout in progressiveorder and the compleoe transverse but, ,orslot; as at Mi is 3 obtatnedonhr as each. place" or zone of banding is 11: win Ice-(understood that m tneuconstruction dfishipsoftany' Tsize the: projections 3'0 1 wekh "many; i-tons each and I are deflected into s pol tion byimeansi of hydraulicjacks,"or-tackle s Thedeflccting torce is: applied near the and Yof .tthe projection and the: transverse out futheatiaway 'isi jflrst'completed and thusia long; leverage is obtained; actually sufiiicienttto curve weboflthe channel niembersmaking up the walls 301 the how. As the deflection proceeds.

the cutiedge. lfiolshownin Fig. 13 (this wouldcor v lding reinforcement m 1 the deflecting" operation of thewalisyand by progressii e' wremoval of the wtra'nsverse pieces or slotsfi froni the walls; the

bending is greatly facilitated and controlled. i f mg silfl to 2lincliisivedisclose' the adaptation q ofithe method specified to 'form the stem portion I wocktne nunx Figs. 14 and 15 represent an initial liiiil 'structure zil whichwouldordinarily be a part dithe initial hull structure 2a shown in Fig. 1.

i rigs. Is and 1'! represent the hullfs tructure'nof the side wallsand; 61; leavingthe out geteam in-the side; wan and thecut ledges I65 and 6] in'the side w'all'Ql. 'I'he b'ottfom (alter #a sectoral" piece has" remoi ed projection; 621s leit attached t the amidship's Tsectionl i. 63 designates the top or deck.

1s and 19 reprschtthehull structure after the bottom projection6" has been deflected upwardly so that the cut edges Elf-and B5 in wall N cc-and the cut edges lifiand lj'ij m wan GI h bee-nbrohghtinto contact and welded.

construction, as shown, is used, the line of cutting i will be at the=pointof cit-vein jt-he side walls, as

described above, and as the hendingor deflection proceeds theftransverse sectoral p eces will he purposesfdescribedi t shown: in Fig. 18 by dotted lines. in

progressivelycut-out asshownin Fig. for he i FiguZl, the'stelrn of the momma closed inwith members and theinode of assembl cuts would bemade in thebottom preliminary .toFbending theside walls inwardly to shape a: contentions] forward or bow end of the hull,

will be understood that if thecurve dfcornerj thetapemd" h "i "as described in my 'co-pending application; Serial No. 264,090;

whiiecutswouldbcmade inthe'sidetvaiilsdl and 9'4;atmthe other end fofjthe structure, and the contiguous bottom lif'ted to shape a conventional sternxno t onpofthe hull. Inboth cases slots would bec'utinthe Cornersections adjacent to the trmngularcuts, to permitzthe members .tobe

defiectedintofinalposition. In the drawings I have shown rthctnconventional typeofship having a pointed bow and a blunt stern; but" it will be obvious that j theqmethodsspecified mayfbe used to construct other types,

fox-example, barges with blunt ends or ships having other combinations of end shapes.

described it will be understood" that longitudinal and transverse bulkheads;intermediate decks,

floorsphatchesfjdeck houses; bridges, etc. will be used, allwfof which maybe constructedasf de- 1.The method of constructing an endportion of the hull of a ship which comprises the initial forming offistructural members to substantially the shape of the transversesection of the hull at its amidships portion; joiningsai'd'membersfto jacentan end thereof,leavingprojections in both I pairs of said walls, whichextend from the amidshipsr portion at said end; bending certain of said projections frorn the other pair-of said walls, into respective adjacent relation with said proectionsin thefirsti pair ofqsaid walls, to'close the end and. obtain the 'desiredjshape in the end portion of 'saidhull andjoining 'said projections to complete the said end of the hull.

t 2. The method of constructing an e'rid portion of thehul1 of aship which comprisesthe initialformingflof: structural members to substantially theshape of the transversesection of the hull at its amidships portion; joining said members tobiorm 'a tubularlparent structure with open ends,. and inciudingmeinbersiused in the amidship's andtthe end portions otthejhull; cutting ap oximately triangular pieces from oppositely disposed walls of the. parent structure, adjacent an end thereof, leaving projections which extend from the amidships portion at said end; cutting slots in certainof said projections; bending said slotted projections into respective contact with} the unslotted projectionsto close the end and obtain thefldesired' shape in the end portion or;

said hull and joining said projectionsto complete the said endpof the hull. 1 i

3. The method of constructing an end'portion v of the hull of a ship which comprises'the initial forming of structural members to substantially l the shapeof theultransverse' section of the hull at'its Iamidships portionyjoining saidimembers to form aiubular parent structure with open ends,a.nd' including 'rnembers used in the amid ships and the end portions of the hull, cutting;

approximately triangular pieces from oppositely disposed walls of the'parent structure, adjacent an end thereon-leaving projections which extend from the Iamidships'portion at said-en'dy pro-' nding application, Serial No. 621,090, andare nota part of the inventionxspecili led injthisiapplication. "1 m 1.=- r

gressively cutting slots in certain of said projectionsand progressively bending said slotted'projections in the zone of the respective slots as they are cut, said slotted projections being bent to make contact with other or said projections to close the end and obtain the desired shape in the end portion of said hull and'joining said projec tions to complete the said end of the hull.

" 4.- The method of constructing an end portion of thehull of a ship which comprises the initial assembly and joining of structural members to form a tubular parent structure having curved corners connecting the four sides and with open ends, and in transverse section to conform substantially to the amidships portion of the hull, said structure including. members used in the amidships and the end portions of the hull;

cutting approximately triangular pieces fromoppositely disposed walls of the parent structure, adjacent an end thereof, leaving projections which extend from the amidships portion at said end; bending certain of said projections jections to close the end and'obtain the desired shape in the end portion of said hull and joining portions of said hull, and comprising a bottom,

a deck and two oppositely'disposed side walls con necting said bottom and said deck; cutting said bottom and said deck, from an open end of said structure, for the extent of said end portion, adjacent to" each side wall; making additional cuts in said bottom and said deck to respectively intersect said first cuts andqthereby removing said walls gressively cutting slots in the curved corners of into respective contact with another of'said protwo approximately triangular pieces from each, I

said bottom and said deck; bending the end portions of said side walls to bring the respective edges formed, in said deck and bottom by said cuts, into abutting relation to substantially close the end of said structure, and joining said abutting edges to completethe end portion of.the hulL v s 6. The method of constructing an end portion of the hull of a ship which comprises the initial forming of' structural shapes, each into a'memherv having four sides connected with curved corners; joining said members in transverse position to form a tubular structure, with open ends, having two pairs of oppositely disposed walls; cutting approximately triangular piecesfrom one pair of said walls extending from the ends thereof bending the ends of the other pair of said walls to close an end of the structure and obtain the desired shape in said hull and joining the cut edges of said respective walls to complete the end portion'of the hull.

7. The method of constructihg an end portion 7 of the hull of a ship which comprises the initial forming of structural shapes, each into a memher having four sides connected with curved cor- V ners; joining said members in transverse position to form a tubular structure, with open'ends,

having two pairs of oppositely disposed walls; cutting approximately triangular pieces from one pair of said walls extending from the ends thereof; cutting slots in the curved corners of certain of the members forming the ends of the, other pair of said walls;

of the structure and to obtain the desired shape in said hull and joining the cut edges of said'respective cut walls to complete the hull.

8. The method of constructing an end portion of the hull of a ship which comprises the initial forming of structural shapes, each into a member having four sides connected with curved corners; joining said members in transverse position to form a tubular structure, with open ends, having two pairs of oppositely disposed walls; cutting ap proximately triangular pieces from one pair of extending from the ends thereof; procertain of the members forming the ends-of the otherpair of said walls andprogress'ivelybending said last mentioned walls adjacent to each slot as it is cut to closean' end and to obtain the desired shape in said hull of said structure and joining the cut edges of said respective cut walls to complete'the end portion of the hull.,

9. The method of constructingan end portion of the hull of a ship which comprises the initial forming of structural shapes, each into a member having four sides connected with curved corners; joining said members in transverse position to form a tubular structure, with open ends,v and comprising a bottom, a deck and two side walls connecting said bottom anddeck; cutting approx imatelytriangular pieoesfrom each of said side walls at one end of said structure; cutting slots in the curved corners of certain of the members adjacent to the bottom of said structure at said end; bending the said bottom'at said'end up wardlyto substantially close the end and obtain the desired shape in said hull and joining the cut; edges of said respective walls and bottom to com-.

plete the end portion of said hull.

10 The method ofconstructing.

members in transverse position to form a tubular structure, with open ends, having two pairs of oppositely disposed walls; cutting, for acerta'in distance from the end of said structure, one pair of i said walls, along lines through'the points of intersect said first cuts and thereby remove approximately triangular pieces from each of said out walls inproximity to an end of said structure; cutting slots in the curved corners of certain of the members of the other pair of said walls at said end; bendin thewalls having the slotted corners at saidend to obtain the desired, shape in said hull and joining the cut edges of said respective cut walls to complete the hull.

11. The method of constructing an end portion of the hull of a ship which comprises the initial bending of standard shapes to form transverse members; joining a plurality of said members to form a substantially straight sided structure with open ends and having a bottom and side walls; cutting approximately triangular pieces from each of said side walls, at one end of said structure; bending the contiguous bottom upwardly to bring the cut edges of the respective walls into adjacent position and joining said out edges to complete the end portion of said hull.

12. The method of constructing an end portion of the hull of a ship which comprises the initial forming of structural shapes, each into a member having a bottom and two side legs, said legs and bending the portions of the walls having the'slotted corners to close an endth hull of'a ship which comprises the initial forming of structural shapes, each into amemberhaving four, sides connected with curved corners; joining said" Ma a ,Uottombeing connected with curved corners;

30 ins I walls in l5. Themethod of constructing the huliof'a Lshipwhich comprises the initial assembly and joining thecut edges 2,828,088 bottom being connected by curved corners; joining saidmembers intransverse position to form a substantially straight sided structure, having a bottomand sidewalls; cutting approximately triangular pieces from each of "said side walls at one end ofsaid structure; cutting tapered slots in the curved cornersfoi" certain of the members of the bottom in proximity; to theend of said structure; bending the contiguous bottom upwardly to bring thecut edges otthe respective walls into adjacent position and to obtain the desired shape in'said hull and joining the cut edges of the respective walls and bottom to complete the end portion of said hull.

t 1 3. The method of constmcting an end portion bffithehull of a shipwhich comprise the intial ing oi'structural shapes, each into a member abottom and two sidelegs, said legs'and said members intransverse position to a substantiallystraight sided structure have ing" a; bottom and side walls? cutting approximately triangular pieces from said bottom at one end oi" said structure; cutting taperedslots inthe curvedcorners of certain oi themembers of the wafls inwardly to bring the edges of the cuts made in the bottom into respective adjacent position and to obtain the desired shape in the hull and wining said cut edgestocomplete the end porj.- 14 The method of constructing the hullof a i shipwhich comprisespthe initial rormingof structuralishapesgeach into amember havinga bottom and two side' less. said legs andbottom being eon-" piloted by curved corners; joining ,said members in ttransverse position to form a substantially straight "sided structure having a bottom and side Walls; cutting approximately triangular pieces from each; of said side walls atone end of said structure; cutting approximately triangular pieces at the other end of saidgstrucproximity to said end Qofthe struca tune; bending the contiguous portions oi the side n 5 pieces from said bottom and said deck at the bow end of said structure; cutting approximatelytrp angular pieces from each of said sidewalls at the stern end of said structure; cutting slots in the corner section at each end of the structure adjacent to the respective cuts made in the bottom, deck and side walls; bending-the side walis iiiwardiy at the bow end'and the bottom upward-1y said structure and said hull and joining the cut edges of the respec the end portion of said" at the stem end of shape in said hull and joining the cutedges of the respective cut membersand corner sections to complete the "hull.

17. The method of constructing an end portion tiv Walls to complete 1 8. The method-of const ucting-ran end portion] of the hull of a ship which comprises the initial bending of standard shapes to form transverse members; joining-a plurality of said mem bers to -form :a substantiallystraight sidedst-rue turewithcpen ends ahd h'av ing abottom' and side walls; cutting proxi-mateiy trian ular i pieces from the said bottom at one end of said structure; bending the contiguous side walls inwardlyto bring the edges oithe cuts madeai-n the bottom into respective abutting position and tit e; cuttingtapered slots in the curved corners of certain of said members at each end of said structure ;bending the walls and bottom attiie respective" ends or'said structure to obtain the desired shape in saidhulland joining the abutting ioining ofstructural pieces: to i'orm a tubular parent structure having openends and comprising a bottom m'emberfl'a deck member;- and two side wall members connecting said bottom and said deck members, cuttii'igj approximately triangular pieces irom each of said'side walls at one end of said structure; cutting'approximately triangular pieces from said bottom and said deck it at the "other end'of said structure: bending the respective uncut membersateach end of said structure toaclose theopen ends of said structure and Obtain the desired shape in said hull and of said respective cutmemt berstocomplete'thehull.

18. The methodbf constructing the hullof a ship which comprises the initial assembly and cut walls and bottom t com, g

portion oi said -hu1l.-'

-of: structural pieces to forma tubular A parentstructure h'avingopen bow and stern-ends and comprising abottom'member, a deck memconnected to said bottom and deck members by corner sections; cuttingapproximately triangular a a p 4 curved webs of -certam o f said channel members forming th adjacent ends of the other pair of said in/ails and progressivelygbending the -por- 1 ber 'and two side wall membersintennediate said bottom and deck members, said-side walls being join ng; Zsaid cut edges to complete the end por- 'tionof said noun i 1-9. The method ofconstiiucting an end portion.

'of the hull of a ship which comprises the initial forming or structural channel shapes each having a web and two flanges, into members each having four sides connected with curved corners joining said channel members, flange to flange, in transverse position to form Quill-b11151 structure, with openlends, having two pairs oroppcsitciy disposed walls; cutting approximately triangular pieces from on pair of said walls extending from an end thereof cutting slots in the curved webs oi certain of: said channel members forming the adacenc ends 01" tne 'otiier "pair of said walls and bending the portions or said adjacent to each slot to abutting; position l and s end of sa id structure edges of said respectivecuts to complete the end last mentioned Walls bring the cut i edges 'into to substantially close an 20. The method or co'n'structing an'endportion 'ofthe hull ofaship a web a-nd two flanges into members "each having iour sides connected with curved corners; joining said channel members fiange to flange, in trans-- verse position to form a tubular structure, with open ends having twopairs-of oppositelydisposed walls; cutting approximately triangularpieces I'rcrnone pair of said walls; extending from an end thereof? progressively cutting slots in-the tionsof said last merino ed walls ad j ace'ntto each slot as it is cut, tobring the cut'edges into abut said structure to close the ends of said -tructureand obtain-the desired and joining the abutting I V which comprises-the miner forming of structural channel shapes-each'havmg ting position and to substantially close an end of said structure and joining the abutting edges of said respective cuts to complete the end portion of said hull. I

'21. The method of constructing an end portion of the hull of a ship which comprises the initial bending of standard structural channel shapes, each provided with a web, and two fianges; joining said channel members, flange to flange, to iorma parent structure with the channels extending transversely thereof, said parent structure comprising a bottom and two side walls attached to said bottom by curved corner sections; cutting approximately triangular pieces from said bottom, adjacent one end of said parent structure; cutting slots in the channel webs of the curved corner sections at each side of said structure, adjacent the said end of said structure; bending the contiguous portions of the side walls and corner sections inwardly to bring the edges of the cuts made in the bottom into respective abutting position and to obtain thedesired shape in said hull, and joining the abutting edges in the bottom, and of the slots, to complete the end portion of the hull.

1 22. The method of constructing an end portion of the hull of a ship which comprises the initial bending of standard structural channel shapes, each provided with a web and two flanges; joining said channel members, flange to flange, to form a parentustructure with the channels extending transversely thereof, said parent structure comprising a bottom and two side walls attached to said bottom by curved corner sections; cutting approximately triangular pieces end of said parent structure; cutting slots in the channel websoi the curved corner sections at each side of said structure adjacent, the said end of said structure; bending the contiguous end of the bottom upwardly to bring the edges of the respective cutsmade in the side walls into abutting position and to obtain the desired shape in said hull. and joining the abutting edges in the side walls and of the slots to complete the end portion of said hull.

23. In the art of shipbuilding the method of constructing a portion of a hull which comprises the initial bending of standard channel shapes to form'twolegs connectedby'a curved corner:

assembling and oining said'channel members to form a first wall section and a second wallsection at substantially right angles to said first wall section, the individual channel members extending transversely through both walls sections, said wall sections being each originally substantially in one plane and connected to each other by a rounded corner section formed by the alignment of the curved corners of the transverse channel members; cutting an approximately triangular piece from the first wall section at an end thereof in proximity to the rounded cornersection; progressively cutting tapered slots in the curved portions of thechannel members, said slots adjoining the cut end, of the first wall section; bending thesecond wall section, adjacent to each slot as it is cut, to bring the respective cut edges into abutting relation and form a curve in the deflected portion of said second wall section, and joining theabutting edges of said cuts to complete the construction of the said portion of the hull.

, 24. In the art of shipbuilding themethod of building a portion of a hull which comprises the construction of a first wallsection and a second from'each of said sidewalls atone wall section at substantially right angles to said first wall section, each wall section beingoriginally substantially straight and; connected to each other by a curved ccrnersection; cutting an approximatelytriangular piece from the first wall section at an end thereof in proximity to the curved corner section; cutting taperedslots in said corner section adjacent -the cut endpoi the first wall section; bending the secondwall section to bring the respective cuts :mtoabutting pered slots in said'corner section' iadjacent the cut end of the first wall section; bendingthe sec; end wall section, adjacent to each "slot .as.it is cut, to bring the respective cutsflinto .abutting relation-and forma curve in the .defiectedJ-portion of said second wall section'andfjoining the abutting edges oisaid cutsto complete the building of the said portion of the hull.- I l f 26. In the art of shipbuilding the method-of building a portion of a hull construction of a first Wall section and a second wall section at substantially right' anglesto said first wallsection, each Wall section being orig: inallyflsubstantially straight and connected to each other by a curved corner section; cutting .an approximately'triangular piece. from the first wall section at an ,endthereof inproximity to the curved. corner section; progressively cutting transverse tapered slots in said corner-section,

adjoining the cut end of the first wall section; bending the second wall section, adjacent to each slot as it is cut, to bring the respective cuts into abutting relation toeform a curve in the deflected portion of said second wall 'sect'ion; andjoining the abutting edges of saidc'ut's to. completethe building of the said portion or thehull; V I

27. As a newarticle of manufacture, a hull iota ship, embodying construction in accordance with the method defined in claim 1. l 28. As a new method of, manufacture, a hull for a ship, embodying construction in' accordance with the method defined in claim 3.

29. As anew article of" manufacture, a hull for a ship,- embodying construction inraccordance with thermethod defined in claim 6, j

30. As a new articleof manufacture, a hull for a ship, embodying construction in accordance With themethod defined in claim 7.

31. As a new'article of manufacturefa hull for a ship, embodying construction inaccordance with the-method defined in claim 11.

32. As a new article of manufacture, a hull for a ship, embodying construction in accordance With-the method defined in claim 14. i i

t 33. As a new article of manufacturepa hull for a ship, embodying construction in accordance with the method defined in claim 15.

34, As a new article "of manufacture, a hull for a ship, embodying construction in accordance withthe method defined in claim 16. 1

35. As a new article of frnanufacture; a hull the meth d 6r thereof, in proximity .to the which comprises the for avship, embodying construction in accordance with the method defined in claim 18.

36. As a newtarticle of manufacture, a hull for a ship, embodying construction in accordance it with the method defined in claim 19.

37. Asa new article of manufacture, a hull for a ship, embodying construction in accordance i with the method defined in claim 21 38. As a new article of manufacture, a hull 

